“While some work continued in underground operations during the power outage, the focus now is to safely transition our surface operations from a period of care and maintenance back into full production.”

The impact of the power failure on production will be provided in BHP’s quarterly operational review scheduled to be released next week.

OZ Minerals also suspended production at its Prominent Hill copper and gold mine south-east of Coober Pedy due to electricity supply disruptions following the severe storms in South Australia.

Full production at OZ Minerals’ Prominent Hill mine is resuming following the restoration of grid power to the site.